MA Boiler Operator case studies
MA Boiler Operator · Put your knowledge to work in context.
The Massachusetts Boiler Operator License Examination is the state assessment used to determine whether a candidate is qualified to operate boilers in Massachusetts. It is written for people who already work around steam or hot water plants - firemen, assistant operators, maintenance technicians, building engineers - and who are seeking the operating credential their job or their employer requires. The MA Boiler Operator case studies are 5 cases and about 3,831 words.
1Safety Valve Lifting Below Its Stamped Setpoint on a 150 psig Firetube
You are the licensed operator on a 500 hp, 150 psig firetube boiler supplying a continuous process. At 03:10 the boiler safety valve begins relieving.
718 words, about 4 min2Conductivity Excursion and Wet Steam After a Contractor Closes the Continuous Blowdown
A 20,000 lb/hr, 150 psig packaged boiler fires No. 2 oil and returns about 70% condensate; make-up is softened city water.
825 words, about 4 min3CO Rises and Draft Falls After an Economizer Bypass Is Installed
A 300 hp gas-fired firetube runs at 150 psig with a new flue economizer and bypass damper installed last month. Before the work: O2 3.0%, CO 25 ppm, stack temperature 470 F, breeching draft -0.09 in.
785 words, about 4 min4Cold Start After a Tube Replacement: Warm-Up Rate Versus a Four-Hour Deadline
A 60,000 lb/hr, 250 psig D-type watertube boiler with an integral superheater has been reassembled after a rear-wall tube replacement. It passed a hydro test at 375 psig, was drained, and has been refilled with 65 F water.
765 words, about 4 min5Unlicensed Coverage and a Lapsed Certificate at a Hospital Boiler Plant
A hospital has a 300 hp, 150 psig steam boiler supplying sterilization and domestic hot water. It is the only boiler on line; the standby is down for a burner repair with parts due Tuesday.
738 words, about 4 min